an 
e) 
INJURIOUS INSECTS OF I909Q AND IQIO. 
cultivated on the 28th of May and on the 7th of June. Mr. Fisher 
began harvesting the cauliflowers in this patch on July 12th. We 
pulled up, examined and counted the roots of the plants from which 
the heads were cut from day to day, on the following dates: July 
14th, 16th, 23d and August 3d; and, summing up the results of all 
these examinations and counts, we found of the treated plants 42 
infested, and 6 free. This shows nothing in favor of the treatment. 
On July 14th the heads which were tied up and the plants which 
were large and in good condition and promised to become market- 
able, were all counted with results as follows: 
Check on one side.. 66 tied, 18 to be tied. 
Treavedmrowa oe oe 20 tied, 5 to be tied. 
Check on other side 21 tied, 6 to be tied. 
The check row which had the largest number of good plants 
was twice as long as either the other check row or the treated row, 
so here again nothing is shown in favor of the treatment. The 
second check row was on the very margin of the field, and the 
plants could hardly be expected to be as thrifty there as in the 
other rows, in any case. 
On June 12th three rows of young cauliflower plants were set 
out and treated with a sawdust-and-glue preparation, made up 
according to the formula in the New Jersey Bulletin No. 200. 
Alternate plants were treated, and the intermediate ones were left 
as checks. One row contained 67 plants, the second contained 65, 
and the third 47. On August 25th these plants were all pulled up 
and their roots examined, as follows: 
TMRCAteG. Eis. Gis sts ohensiaee 21 free, 10 marked. 
Checks) ss a. Nasr ... 14 free, 37 marked. 
This gives some evidence in favor of the treatment. Many 
check and treated plants died because of lack of moisture. 
On June 15th two rows of cauliflowers were set out on the 
Station grounds, and treated at once with sawdust and glue, the 
following formula being used in the preparation of the mixture: 
Four pounds hard glue, 2 gallons water, 2 pecks sawdust. There 
were 63 plants in one row, and 59 in the other. Every other plant 
in both rows was treated, the alternating plants being used as 
checks. On August 25th the plants in this experiment were 
pulled, and their roots examined, with results as follows: 
Treated he sohhecuse 10 free, 18 marked. 
@hecks ea.) secon 2 free, 35 marked. 
